Fig. 2

Monthly distribution of dengue fever cases in Yunnan Province, China, 2013–2015. a Monthly distribution of all indigenous and imported dengue fever cases in Ruili City, 2013–2015. b–d. Monthly distribution of indigenous and imported dengue fever cases in Ruili City in 2013 b, 2014 c, and 2015 d. e Monthly distribution of indigenous dengue fever cases in Jinghong City, 2013 and 2015. *There were more indigenous cases than imported cases in Jinghong, thus analysis of monthly distribution only included indigenous dengue fever cases. f Monthly distribution of indigenous dengue fever cases in Gengma County, 2015